A cleaning device for cleaning components of a video unit

G - Physics – 11 – B

Patent

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Details

G11B 33/00 (2006.01) G11B 5/41 (2006.01) G11B 23/04 (2006.01)

Patent

CA 2232025

A cleaning device (1) for cleaning components (4, 5, 6, 7, 9, 10, 11) of a video unit comprises a cassette housing (15) having a pair of spools (24) rotatably mounted therein. A cleaning tape (30) is wound onto the spools (24) and is transferred from one spool (24) to the other on rotation thereof. The cleaning tape (30) when in a cleaning position engages the components (4, 5, 6, 7, 9, 10, 11) of the video unit. The cleaning tape (30) defines a central longitudinal central axis (46) which defines a sinusoidal waveform so that as the cleaning tape is wound from one spool (24) to the other along the magnetic tape path, the cleaning tape (30) cycles progressively over the components (4, 5, 6, 7, 9, 10, 11) for cleaning the magnetic tape path area (40) of the component and margin areas (41, 42) on opposite sides of the area (40). The cycling of the cleaning tape (30) may be achieved by mechanical means.

La présente invention concerne un dispositif de nettoyage (1) qui est constitué d'un boîtier (15) de cassette dans lequel sont montées deux bobines (24) en rotation, et sert à nettoyer les composants (4, 5, 6, 7, 9, 10, 11) d'un appareil vidéo. Une bande nettoyante (30) enroulée sur les bobines (24), est transfée d'une bobine (21) à l'autre sous l'effet de leur rotation. Lorsqu'elle est en position de nettoyage, la bande nettoyante (30) entre en contact avec les composants (4, 5, 6, 7, 9, 10, 11) de l'appareil vidéo. Cette bande nettoyante (30) définit un axe central longitudinal (46) qui définit lui-même une forme d'onde sinusoïdale de façon qu'au fur et à mesure que la bande nettoyante se déroule d'une bobine (24) vers l'autre en suivant le chemin de bande magnétique, la bande nettoyante (30) effectue progressivement des mouvements alternatifs sur les composants (4, 5, 6, 7, 9, 10, 11) pour nettoyer la zone du chemin (40) de la bande magnétique et les zones marginales (41, 42) de chaque côté de la zone (40). Les mouvements alternatifs de la bande nettoyante (30) peuvent être obtenus grâce à des moyens mécaniques.

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